If you have been playing around with your iPhone and have tried to downgrade it from iPhone OS 4 to 3.1.3 or trying to install some custom firmware on it with help of some tool, you might get stuck with a typical iTunes error -
iTunes Error 1015
In this post, I will share a simple tool which can fix this iTunes 1015 Error on your Windows PC. The tool is called as Error 1015 Fixer.
To use this tool, you need to install LibUSB which allows this tool to work properly. So to use this tool, simply follow the steps given below :
Step 1 : Download and Install correct version (32 bit / 64 bit) of LibUSB here.
Step 3 : Run iTunes and when you get the error, click the button on the Error 1015 Fixer Tool which says “Fix My Error”
That is it, this toll will fix the iTunes Error 1015.
Source – Gadgets DNA